The Cap,linear Actuating Cylinder, cataloged under National Stock Number 1650-01-140-4112, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-140-4112 |
| Primary Part Number | 1B48181-1 |
| Item Name | Cap,linear Actuating Cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Outside Diameter | 1.380 INCHES MAXIMUM IN |
| Overall Thickness | 0.419 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 1650-01-140-4112 is a Cap,linear Actuating Cylinder, manufactured by The Boeing Company, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-140-4112 has 2 manufacturer part numbers on file: 1B48181-1 (The Boeing Company), 1B48181-1 (Ace Aviation Service, Inc).
Key specifications for 1B48181-1: Outside Diameter: 1.380 INCHES MAXIMUM IN; Overall Thickness: 0.419 INCHES MAXIMUM IN; Special Features: MATERIAL DOCUMENT AND CLASSIFICATION:QQ-A-225/9,COND T-7351; Material: ALUMINUM ALLOY. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1650-01-140-4112 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.